1fa8ebfbbb
Reported by: SVN pre-commit hooks MFC after: 15 days MFC-With: r350665 Sponsored by: The FreeBSD Foundation
347 lines
10 KiB
C++
347 lines
10 KiB
C++
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2019 The FreeBSD Foundation
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*
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* This software was developed by BFF Storage Systems, LLC under sponsorship
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* from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/* This file tests functionality needed by NFS servers */
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extern "C" {
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#include <sys/param.h>
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#include <sys/mount.h>
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#include <dirent.h>
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#include <fcntl.h>
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#include <unistd.h>
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}
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#include "mockfs.hh"
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#include "utils.hh"
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using namespace std;
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using namespace testing;
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class Nfs: public FuseTest {
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public:
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virtual void SetUp() {
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if (geteuid() != 0)
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GTEST_SKIP() << "This test requires a privileged user";
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FuseTest::SetUp();
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}
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};
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class Exportable: public Nfs {
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public:
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virtual void SetUp() {
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m_init_flags = FUSE_EXPORT_SUPPORT;
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Nfs::SetUp();
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}
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};
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class Fhstat: public Exportable {};
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class FhstatNotExportable: public Nfs {};
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class Getfh: public Exportable {};
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class Readdir: public Exportable {};
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/* If the server returns a different generation number, then file is stale */
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TEST_F(Fhstat, estale)
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{
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const char FULLPATH[] = "mountpoint/some_dir/.";
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const char RELDIRPATH[] = "some_dir";
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fhandle_t fhp;
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struct stat sb;
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const uint64_t ino = 42;
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const mode_t mode = S_IFDIR | 0755;
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Sequence seq;
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EXPECT_LOOKUP(FUSE_ROOT_ID, RELDIRPATH)
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.InSequence(seq)
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.WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
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SET_OUT_HEADER_LEN(out, entry);
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out.body.entry.attr.mode = mode;
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out.body.entry.nodeid = ino;
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out.body.entry.generation = 1;
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out.body.entry.attr_valid = UINT64_MAX;
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out.body.entry.entry_valid = 0;
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})));
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EXPECT_LOOKUP(ino, ".")
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.InSequence(seq)
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.WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
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SET_OUT_HEADER_LEN(out, entry);
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out.body.entry.attr.mode = mode;
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out.body.entry.nodeid = ino;
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out.body.entry.generation = 2;
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out.body.entry.attr_valid = UINT64_MAX;
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out.body.entry.entry_valid = 0;
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})));
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ASSERT_EQ(0, getfh(FULLPATH, &fhp)) << strerror(errno);
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ASSERT_EQ(-1, fhstat(&fhp, &sb));
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EXPECT_EQ(ESTALE, errno);
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}
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/* If we must lookup an entry from the server, send a LOOKUP request for "." */
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TEST_F(Fhstat, lookup_dot)
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{
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const char FULLPATH[] = "mountpoint/some_dir/.";
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const char RELDIRPATH[] = "some_dir";
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fhandle_t fhp;
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struct stat sb;
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const uint64_t ino = 42;
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const mode_t mode = S_IFDIR | 0755;
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const uid_t uid = 12345;
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EXPECT_LOOKUP(FUSE_ROOT_ID, RELDIRPATH)
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.WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
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SET_OUT_HEADER_LEN(out, entry);
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out.body.entry.attr.mode = mode;
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out.body.entry.nodeid = ino;
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out.body.entry.generation = 1;
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out.body.entry.attr.uid = uid;
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out.body.entry.attr_valid = UINT64_MAX;
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out.body.entry.entry_valid = 0;
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})));
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EXPECT_LOOKUP(ino, ".")
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.WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
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SET_OUT_HEADER_LEN(out, entry);
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out.body.entry.attr.mode = mode;
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out.body.entry.nodeid = ino;
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out.body.entry.generation = 1;
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out.body.entry.attr.uid = uid;
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out.body.entry.attr_valid = UINT64_MAX;
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out.body.entry.entry_valid = 0;
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})));
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ASSERT_EQ(0, getfh(FULLPATH, &fhp)) << strerror(errno);
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ASSERT_EQ(0, fhstat(&fhp, &sb)) << strerror(errno);
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EXPECT_EQ(uid, sb.st_uid);
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EXPECT_EQ(mode, sb.st_mode);
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}
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/* Use a file handle whose entry is still cached */
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TEST_F(Fhstat, cached)
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{
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const char FULLPATH[] = "mountpoint/some_dir/.";
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const char RELDIRPATH[] = "some_dir";
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fhandle_t fhp;
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struct stat sb;
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const uint64_t ino = 42;
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const mode_t mode = S_IFDIR | 0755;
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EXPECT_LOOKUP(FUSE_ROOT_ID, RELDIRPATH)
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.WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
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SET_OUT_HEADER_LEN(out, entry);
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out.body.entry.attr.mode = mode;
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out.body.entry.nodeid = ino;
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out.body.entry.generation = 1;
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out.body.entry.attr.ino = ino;
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out.body.entry.attr_valid = UINT64_MAX;
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out.body.entry.entry_valid = UINT64_MAX;
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})));
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ASSERT_EQ(0, getfh(FULLPATH, &fhp)) << strerror(errno);
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ASSERT_EQ(0, fhstat(&fhp, &sb)) << strerror(errno);
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EXPECT_EQ(ino, sb.st_ino);
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}
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/* File handle entries should expire from the cache, too */
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TEST_F(Fhstat, cache_expired)
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{
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const char FULLPATH[] = "mountpoint/some_dir/.";
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const char RELDIRPATH[] = "some_dir";
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fhandle_t fhp;
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struct stat sb;
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const uint64_t ino = 42;
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const mode_t mode = S_IFDIR | 0755;
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EXPECT_LOOKUP(FUSE_ROOT_ID, RELDIRPATH)
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.WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
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SET_OUT_HEADER_LEN(out, entry);
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out.body.entry.attr.mode = mode;
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out.body.entry.nodeid = ino;
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out.body.entry.generation = 1;
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out.body.entry.attr.ino = ino;
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out.body.entry.attr_valid = UINT64_MAX;
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out.body.entry.entry_valid_nsec = NAP_NS / 2;
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})));
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EXPECT_LOOKUP(ino, ".")
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.WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
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SET_OUT_HEADER_LEN(out, entry);
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out.body.entry.attr.mode = mode;
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out.body.entry.nodeid = ino;
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out.body.entry.generation = 1;
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out.body.entry.attr.ino = ino;
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out.body.entry.attr_valid = UINT64_MAX;
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out.body.entry.entry_valid = 0;
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})));
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ASSERT_EQ(0, getfh(FULLPATH, &fhp)) << strerror(errno);
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ASSERT_EQ(0, fhstat(&fhp, &sb)) << strerror(errno);
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EXPECT_EQ(ino, sb.st_ino);
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nap();
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/* Cache should be expired; fuse should issue a FUSE_LOOKUP */
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ASSERT_EQ(0, fhstat(&fhp, &sb)) << strerror(errno);
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EXPECT_EQ(ino, sb.st_ino);
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}
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/*
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* If the server doesn't set FUSE_EXPORT_SUPPORT, then we can't do NFS-style
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* lookups
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*/
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TEST_F(FhstatNotExportable, lookup_dot)
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{
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const char FULLPATH[] = "mountpoint/some_dir/.";
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const char RELDIRPATH[] = "some_dir";
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fhandle_t fhp;
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const uint64_t ino = 42;
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const mode_t mode = S_IFDIR | 0755;
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EXPECT_LOOKUP(FUSE_ROOT_ID, RELDIRPATH)
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.WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
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SET_OUT_HEADER_LEN(out, entry);
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out.body.entry.attr.mode = mode;
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out.body.entry.nodeid = ino;
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out.body.entry.generation = 1;
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out.body.entry.attr_valid = UINT64_MAX;
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out.body.entry.entry_valid = 0;
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})));
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ASSERT_EQ(-1, getfh(FULLPATH, &fhp));
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ASSERT_EQ(EOPNOTSUPP, errno);
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}
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/* FreeBSD's fid struct doesn't have enough space for 64-bit generations */
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TEST_F(Getfh, eoverflow)
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{
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const char FULLPATH[] = "mountpoint/some_dir/.";
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const char RELDIRPATH[] = "some_dir";
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fhandle_t fhp;
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uint64_t ino = 42;
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EXPECT_LOOKUP(FUSE_ROOT_ID, RELDIRPATH)
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.WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
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SET_OUT_HEADER_LEN(out, entry);
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out.body.entry.attr.mode = S_IFDIR | 0755;
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out.body.entry.nodeid = ino;
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out.body.entry.generation = (uint64_t)UINT32_MAX + 1;
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out.body.entry.attr_valid = UINT64_MAX;
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out.body.entry.entry_valid = UINT64_MAX;
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})));
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ASSERT_NE(0, getfh(FULLPATH, &fhp));
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EXPECT_EQ(EOVERFLOW, errno);
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}
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/* Get an NFS file handle */
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TEST_F(Getfh, ok)
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{
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const char FULLPATH[] = "mountpoint/some_dir/.";
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const char RELDIRPATH[] = "some_dir";
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fhandle_t fhp;
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uint64_t ino = 42;
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EXPECT_LOOKUP(FUSE_ROOT_ID, RELDIRPATH)
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.WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
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SET_OUT_HEADER_LEN(out, entry);
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out.body.entry.attr.mode = S_IFDIR | 0755;
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out.body.entry.nodeid = ino;
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out.body.entry.attr_valid = UINT64_MAX;
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out.body.entry.entry_valid = UINT64_MAX;
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})));
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ASSERT_EQ(0, getfh(FULLPATH, &fhp)) << strerror(errno);
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}
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/*
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* Call readdir via a file handle.
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*
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* This is how a userspace nfs server like nfs-ganesha or unfs3 would call
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* readdir. The in-kernel NFS server never does any equivalent of open. I
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* haven't discovered a way to mimic nfsd's behavior short of actually running
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* nfsd.
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*/
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TEST_F(Readdir, getdirentries)
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{
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const char FULLPATH[] = "mountpoint/some_dir";
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const char RELPATH[] = "some_dir";
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uint64_t ino = 42;
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mode_t mode = S_IFDIR | 0755;
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fhandle_t fhp;
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int fd;
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char buf[8192];
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ssize_t r;
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EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
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.WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
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SET_OUT_HEADER_LEN(out, entry);
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out.body.entry.attr.mode = mode;
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out.body.entry.nodeid = ino;
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out.body.entry.generation = 1;
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out.body.entry.attr_valid = UINT64_MAX;
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out.body.entry.entry_valid = 0;
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})));
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EXPECT_LOOKUP(ino, ".")
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.WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
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SET_OUT_HEADER_LEN(out, entry);
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out.body.entry.attr.mode = mode;
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out.body.entry.nodeid = ino;
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out.body.entry.generation = 1;
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out.body.entry.attr_valid = UINT64_MAX;
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out.body.entry.entry_valid = 0;
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})));
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expect_opendir(ino);
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EXPECT_CALL(*m_mock, process(
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ResultOf([=](auto in) {
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return (in.header.opcode == FUSE_READDIR &&
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in.header.nodeid == ino &&
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in.body.readdir.size == sizeof(buf));
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}, Eq(true)),
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_)
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).WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
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out.header.error = 0;
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out.header.len = sizeof(out.header);
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})));
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ASSERT_EQ(0, getfh(FULLPATH, &fhp)) << strerror(errno);
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fd = fhopen(&fhp, O_DIRECTORY);
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ASSERT_LE(0, fd) << strerror(errno);
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r = getdirentries(fd, buf, sizeof(buf), 0);
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ASSERT_EQ(0, r) << strerror(errno);
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leak(fd);
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}
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